I was slowly working my cock, inch by glorious inch, into her warm, sticky rectum. With a final thrust my entire cock is lodged securely inside her arsehole.
She is the Head of Languages at the public school (private school if you're from America. I am a teaching assistant). She is bent over the desk in her office. Her black knee high skirt is bunched up around her waist. The black lace thong that she was wearing is now in her mouth. I now begin to slowly pull my cock back until only the head remains lodged in her anal cavity. I then forcefully thrust myself back inside . The thrust draws a muffled whimper from her. I then repeat this motion over and over again, the slow draw back and the quick thrust back inside.
Throughout all of this she tries to remain silent. Her whimpers and moans are muffled by the lacey thong that is now in her mouth. The smell of anal sex is now in the air. I know she can smell it and she knows I can smell it. It seems she hasn't cleaned her slutty arse properly. She knows what the consequences of a dirty rectum is. Indeed as I look down I see her swollen and distended shithole around my cock. And my dick, well my dick is covered by a sheen, of what I can only surmise, is shit and lube. Surprisingly that sight, instead of causing feelings of disgust, only seems to inflame my lust.